// 图书类
public class Book {
	// 编号
	int id;
	// 书名
	String title;
	// 单价
	double price;
	// 出版社
	String publisher;

	public Book(int id, String title, double price, String publisher) {
		this.id = id;
		this.title = title;
		this.price = price;
		this.publisher = publisher;
	}

	public Book() {

	}

	// 显示信息
	void showMe() {
		String infoString = id + "\t" + title + "\t" + price + "\t" + publisher;
		System.out.println(infoString);
	}
}
